I want to access every nth value of a large matrix. How can I do that?

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Chandvi Arora
Chandvi Arora on 21 Jul 2017
Edited: Stephen23 on 21 Jul 2017
I require a matlab code for resultant matrix obtained by picking every 9th element of a very large matrix. How can I do that?

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Accepted Answer

Stephen23
Stephen23 on 21 Jul 2017
Edited: Stephen23 on 21 Jul 2017
Where M is your matrix, using simple subscript indexing:
M(1:9:end,1:9:end)
Or using linear indexing (not likely that you want this, but worth mentioning):
M(1:9:end)

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